• Vision– A sustainable world where our natural environment is preserved.

• Mission– To reduce waste, promote the management of all materials to their

highest and best use.

• Objective– To encourage the recycling and reuse of C&D debris and inert debris

that may otherwise be disposed in a solid waste disposal facility.

Composition of MSW Composition of

Construction Waste

0

5

10

15

20

25

30

35

40

45

50

Type of Construction Waste &

Contribution

Sr.

No. Type %

1New

Construction10

2 Renovation 40

3 Demolition 50

Concrete Glass

Sand & Aggregate

Steel

Brick Timber

Water Plastic

Ceramics Paint

Sanitary ware

Plaster of Paris

Waste generated from construction industry

Inert material

e.g., rocks, concrete, bricks, stone, earth.

Non inert material

e.g., plastic, packaging waste, paint

On site waste sorting• Sort and segregate inert and non-inert materials • Sort and segregate materials such as paper, plastic, timber,

metals, masonry, concrete and excavated soil

Concrete

• Concrete is amixture of sand,cement, aggregate,water, & admixtures

• Benefits of reducingof Concrete waste

– Reduce cost of aggregates– Reduce disposal cost– Environmental degradation

prevented– Reduce consumption of

natural resources– Life span of landfill area will

increase

• Disposal method at CHARUSAT campus– Due to parallel projects simultaneously

going on so waste generated due to concrete is generally used as a filling material and sub base layer of pavement construction.

– Due to use of Ready mix concrete waste generated due to concrete reduced considerably

Stone/Marbles

• How the waste is generated? The stone/marble whichcame from the quarry wasnot of a perfect size andshape which is likely to beused in work, so we have tocut the stone/marble indesired shape and size as perour requirement.

After cutting the excessportion has no further usehence waste is generated .

• Reuse of the waste– In most cases the stone waste is

used as filler material in roadconstruction part.

– The marble waste sometimesused in terrazzo flooring.

If there is no reuse of stones/marbles they are dumped/sell to other agencies.

Timber

How the Waste is generated?

•Timber is generally used asframework for building concretestructures, with passage of time itbecome soft due to contact withmoisture of concrete.

•Shape & size of timber somewhatchange which is not proper to useas framework, so it has no furtheruse hence waste is generated.

Reuse of the waste

– It is mostly crushed into chip &used as fuel.

– It can be utilized to manufacturewood-chip concrete by injectingcement grout into voids ofcompacted wood-chips in moulds.

– Wood-chip concrete can be usedas building material.

Sand

• How the waste is generated ?

1. The sand which came from the quarry was not of a perfect size which is likely to be used in work, so we have to sieve as per our requirement.

2. After sieving the remaining sand has no further use hence waste is generated.

• Reuse of the waste

1. In most cases the sand waste is used in road construction.

2. After the use of remaining sand there is some amount of sand is mixed with soil so that sand is useful for garden decoration.

Steel

How steel waste generate ?

1. Most of steel waste is generated during demolition around 70% to 80% of all steel waste.

2. Remaining parts of steel rodeduring construction stage

3. Due to corrosion

4. Waste in terms of bent Nail

5. Small Pieces of G.I. pipes

Reuse of steel waste

1. For making of stirrup

2. For hidden structure use waste pieces

Suggestion Given by us

1. Collect at one place & sell for income.

Brick

How waste generate?• A brick is a block or a single unit of a

kneaded clay-bearing soil, sand and lime, or concrete material, fire hardened or air dried, used in masonary construction

• The Brick Waste is generated in the form of Bats and Small Pieces

• While loading from the manufacturing unit to the unloading at the Site , there is possibility where the Bricks get broken and turn into bats and the small pieces

• Reuse of the waste

Broken and discraded Bricks can be used as consturuction infill or as aggregate for non-structural concrete.

Crushed brick & roof tiles are the bulk of demolition waste which were earlier being dumped in landfills , now they can be recycled into mortar plaster & building blocks.

Glass

How the Waste Generate?• Glass Waste is generated in

the form of broken pieces.

• While demolition and restoration work of any stucture the glass waste is generated.

• There is less chance of Glass waste while any work as care is taken to remove and place the Glass , but somehow due to improper holding and the handling of the Glass, the waste is generated.

• Reuse of the waste

• Generally in India the Glass waste is dumped without taking any care but the site we visited , at that place the authority takes special care for the disposal of the Glass which is being sold to the Junkyard People for the recycling the Broken , Damaged Glass.

Plastic

How plastic waste Generate?1. Cement bag2. Cover material for flooring3. Pieces of pipe

P.O.P.

How p.o.p. waste generate?1. During ceiling work

Ceramic

How it generate?1. During transport

Reuse of plastic waste1. Joint the plastic bags of cement & use as

curtain for protection of neighbour property

Reuse of p.o.p. waste1. It only use as filler

Reuse of it1. For flooring of terrace as a china mosaic

The important initiatives sited are:

• Promoting separation of C&D waste at source

• Promoting recycling

• Band on land filling of C&D waste

• Developing market for recycled products

• Production of concrete bricks and paving blocks

• Guidelines for using C&D waste

• Developing designs which facilitate ‘deconstruction’ instead of outright demolition

Conclusion:

• It has been established that materials & components fromdemolished buildings are being reused for new constructionworks as well as renovation projects, especially by low-incomecommunities in developing countries like India.

• In developing countries most of the demolition rubble isdumped, the developed world has now started to recycle it intoaggregate for non-structural concrete.

• It is hoped that recycling waste material for use in the buildingwill cut down costs of producing new raw materials therebyreducing consumption of natural resources like energy &reduces usage of landfills.